Winding machine



L. R. RINEHART WINDING MACHINE May 20, 1952 14 Sheets-Sheet 1 Filed Feb.19, 1946 L. R. RINEHART WINDING MACHINE May 20, 1952 14 Sheets-Sheet 2Filed Feb. 19, 1946 y 1952 R. RINEHART 2,597,375

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y 1952 1.. R. RINEHART 2,597,375

, WINDING MACHINE Filed Feb. 19, 1946 14 Sheets-Sheet 9 I IO lIIm Q: s

L. R. RINEHART WINDING MACHINE May 20, 1952 14 Sheets-Sheet 11 FiledFeb. 19, 1946 L. R. RINEHART WINDING MACHINE May 20, 1952 14Sheets-Sheet 12 Filed Feb. 19, 1946 g Q N It 1% 5 mm u RN I/z vezzzor: LZagd fifz'zzakri.

| R. RINEHART WINDING MACHINE May 20, 1952 14 Sheets-Sheet 15 Filed Feb.19, 1946 u F NN H WN A L. R. -RINEHART WINDING MACHINE May 20, 1952Filed Feb. 19, 1946 14 Sheets-Sheet l4 Patented May 20, 1952 WI NDINGMACHINE Lloyd It. Rinehart, Dixon, Ill., assignor, by mesne assignments,to National-Standard Company, a

corporation of Michigan Application February 19, 1946, Serial No.648,728

' 11 Claims. (01. 242-) 'improved multiple bobin or core winding machinein which a large number of such devices I may be wound with wire orthread during each complete cycle of the machine and wherein breakage ofthe line being wound is minimized.

It is another object of the invention to provide improved mechanism forvarying the rate of feed of the line being wound as the bobbins or coresare filled with successive layers of such material.

It is also an object of the invention to provide improved brake meansand operation thereof for the line feeding mechanism.

It is an object of the invention to provide a variable speeddistributing mechanism for different diameters of wire, so that thelayers on the'bobbins will be evenly laid side by side.

It is also an object to provide a distributing mechanism which lays thewire on bobbins in smooth layers and gets more wire on each bobbin thanformer machines.

It is an object of the invention to provide improved and fool-proofindexing mechanism for transferring the winding operation from onebobbin or core to the next bobbin or core to be wound.

It is still another object of the invention to provide a very simplemechanism for imparting movement to the indexing mechanism and forreturning the indexing mechanism to its initial or starting position.

It is a further object of the invention to provide an improved feedingmechanism for the line to be wound between the reel containing thematerial and the distributor.

It is an important object of the invention to provide novel mechanismfor quickly transferring the winding of the line from one bobbin or coreto the next without stopping the machine.

It is also an object of the invention to provide mechanism for liftingthe follower mechanism as each bobbin or core is wound and for retainingthe follower mechanism in the lifted position.

It is also an object of the invention to provide a stop for the indexingmechanism at each station or desired increment of movement thereof.

It is another object of the invention to provide novel releasingmechanism for affording movement of the indexing mechanism from onestation to another.

It is also an object of the invention to provide an improved arbor for amultiple winding machine, as well as a novel release and retainingmechanism for the arbor. I

It is an object of the invention to provide a winding machine, andparticularly a brake mechanism, which permits the use of a supply ofline either from a spool or a hank.

It is a very important object of the invention to provide a multiplecore winding machine which greatly decreases the cost and labor ofwinding cores over machines heretofore used, particularly over singlecore winding machines.

It is also an important object of the invention to provide a multiplebobbin winding machine which is capable of winding relatively large sizebobbins, thereby reducing labor costs in applying the bobbins to a wirescreen weaving machine, for example. I

It is another object of the invention to provide a core winding machinewhich may be started at substantially full speed to wind cores, evenwith relatively fine wire, thus eliminating the necessity for theoperator to slowly engage the clutch.

With these and other objects in view, my invention consists in theconstruction, arrangement and combination of the various parts of mydevice whereby the objects contemplated are attained, as hereinaftermore fully set forth, pointed out in my claims and illustrated in theaccompanying drawings, wherein:

Fig. 1 is a top plan view of a multiple bobbin winding machine;

Fig. 2 is a side view of a pivoted brake lever and parts associatedtherewith;

Fig. 3 is a front view of the machine with the bobbin arbor in dottedlines and parts of the casing broken away; I

Fig. 4 is a view with parts broken away and the outside casing removed,taken on line IV-IV of Fig. 3;

Fig. 5 is a plan view of the front portion of the machine with theheadstock, tailstock and indexing mechanism enlarged; I

Fig. 6 is a side view of the arbor with one bobbin in dotted lines;

Fig. '7 is a side view of one of the bobbins;

Fig. 8 is a view of the arbor after assembly;

Fig. 9 is a front view of the machine, partly in section taken on lineIX-IX of Fig. 5;

Fig. 10 is a sectional view taken below the top of the table plate online XX of Fig. 9;

Fig. 11 is a sectional view of the shuttle rod connector guide blocktaken on line XI-XI of Fig; 5;

Fig. 12 is a sectional view taken on line XII-XII of Fig. 11;

Fig. 13 is an elevational view of the rear part of the machine taken online XIII-XIII of Fig. 4;

Fig. 14 is a sectional view of the wire unwinding device taken on lineXIV-X[V of Fig. 4;

Fig. 15 is a top view of the wireunwinding device;

Fig. 16 is a sectional view of the friction disc and lever taken on lineXVI-XVI of Fig. 15;

Fig. 17 is a bottom view of the rotating un-. winding guide arm taken online XVII-XVII of Fig. 14;

Fig. 18 is a sectional view of the headstock,

arbor driver and tailstock taken on line XVIII- XVIII of Fig. 4;

Figs. 19, 20, 21 and 22 are sectional views taken on lines XIX-XIX,XX-XX, XXI-XXI, and XXII-XXII, respectively of Fig. 18.

Fig, 23 is an end viewv f the machin with parts broken away take on lineXXII .XH land shows a housing with thedistributormecm anism and heartshaped cam; therein;

Fig, 24 is a view of the distributonin the hous ing ;taken on lineXXIV-XXIV of Fig. 23 with the cover of the housing broken away. the dotand dash lines showing the cam and-rollersin one of their positions;

Fig.25gis atop plan view, of the distributor with the top of thehousingremoved;

Fig. 26 a, front view of the distributor with parts broken awayrshowingthe, gear and worm drive and themounting thereofin its housing;

Fig, 27 is atop plan view of thestructure shown in Fig.26;

Fig. 28.isa partial sectional view ,taken on line XXVHI-- -XXVIII0 Fig.27;

Fig. 29 is an elevational view of the cam and cam, follower carrier;

Fig. 30 is a sectional viewof the cam follower carrier;

Fig. 311s an elevational view of .the cam followercarrier with the coverplate removed;

Figt32-is a sectional view, of the cam follower carriertaken on lineXXXII-JQIXII of Fig. 31;

Fig- 33 isatop and end view. of -;the cam follower block;

Fig. 34is a view: of the spring stud;

Fig. 35 is a plan view ofthe right andleft-hand tail stocks and:portions ofthe-indexing mechanism showing the first bobbins wound andthe second bobbins winding;

Fig. 36 is a sectional view. taken .on, line XXXVL-XXXVI of Fig. 35showing the indexin mechanism and flipper assembly relative to a bobbin;

Fig. 37 is a front and side,view of ashim for various thicknesses ofwire.

Fig.38is a sectional view. of the indexing mechanism and flipperassembly in the second bobbin winding. position, taken on line XXXVIIL-)QIXVIH of Fig. 35;

Fig. 39 is an enlarged plan view of thefiipper assembly showing theflipper strike blockand pper P Fig. 40 is a detailview of .thestop shoe,forthe indexing mechanism showing theindex-levers in various positions;and

Fig. 41-is a, sectional view taken-on, line XXXXIXXXXI- of Fig. 40'.-

Frame and .main drive Themachine illustrated in the drawings is def,signed to wind wire on the core of a pluralityof;

bobbins, and the description will be confined to that machine. However,it will be obvious that the machine may be used for winding a line ofthread, twine, or the like, and with a slight modification of the arbor,may be used to wind cores for solenoids, condensers or the like. Itherefore, do not wish to be limited to either wire or bobbins, perse,except as such limitations may appear in the appended claims.

Referring specifically to the drawings for a detailed description of theinvention, and particularly to Figures 1 to 4 inclusive and 9, amultiple bobbin winding machine is illustrated wherein a frame,generally indicated by the numeral I supports a bed plate 2 and anenclosing cabinet 3. The-frame I is also provided with an internalintermediate supporting member 4 and an external supporting member 5.The frame I, bed plate 2, and supporting members 4 and support theoperating parts of the machine.

Anelectric motor 63 is mounted on the internal supporting member 4 andis provided with oppositely. extending shafts I, each of which isprovided with a conventional manually operated clutch 8. A variablespeed driving pulley or sheave 9 is provided on one of the shafts 'l, asbest seen inFigures 3 and 9 and 10. The speed of the belt driven by the.pulley 9 is varied by changing the spacing between the fixed and movablepart of the sheave, as is well understood in the art. Manually operablelevers I! including -handles [2 are provided for engaging anddisengagingeach clutch 8 and extend upwardly fromthe clutches andexteriorly of the front of the cabinet 3; so that they are readilyaccessible to-the operator of the machine. The manually operated leversl l are pivoted at H! on mem-- The belts l9 drive pulleys 2|, which inturn.

drive shafts-22 extending into head-stock assemblies-generally indicatedby the numeral 23. The head-stock assemblies are mounted on thebed-plate-2 As best shown in- Figures 3, 9, and 18 and. 22, the shaf t-22'extends'through the head-stock assembly 23 and isjournalled infrictionless bearings 24 contained therein. The shaft 22 rotates a plateprovided with apertures 2! therein for the reception of fibre extensions26 secured toa-stop-plate 29 of an arbor generally indicated at byscrews 28. Cover-plates-3l are bolted at each end of the head-stockassembly to retain lubricant -in-the bearings 24and to exclude dirt anddust.-

Head-stock, tailestock-and arbor mechanisms As shown in Figures 6 to 8inclusive, and 18, the arbor. 3E)v has a plurality of bobbins 32 forwire 33"supported thereon. The bobbins 32 are eachgprovided, with acentral circular hole 34 so: that the bobbins may be slid over a keyedtubular member 3510f the arbor 38. The bobbins 32*are providedwithflanges and hubs or matrixes Land the firstbobbin flange'36 is stoppedby the stop plate 29, it being noted that the opposite end of thetubular member-35'has no plate associated therewith. The flanges 36 ofadjacent bobbins abut against each other and the flange 36 of the lastbobbin is held on the arbor 38 by a plate 31 on a tailstock assembly 38,which plate 31 is biased toward the arbor and the bobbins thereon bysprings 38. The tailstock assembly 38 is supported by the bed plate 2.

Each end of the arbor 38 is provided with a centering stud 4| and 42.The arbor shown is adapted to hold ten bobbins, it being obvious thatany desired number may be mounted on a single arbor. Furthermore, themachine illustrated is adapted to wind bobbins on two arbors 38 at onetime, although the invention is not limited to such a number. Since thetwo sides of the machine are substantially identical, a description ofone side will generally be sufficient.

The tail-stock assembly 38 comprises a casing 43 for retaining a stubshaft 44 journalled in frictionless bearings 45. Covers 46 are bolted tothe ends of the casing 43 and the stub shaft 44 is connected to arotatable plate 41, which is adapted to receive the centering stud 42 ofthe arbor 38. Bolts 48 extend through the rotatable plate 41 and arethreaded into apertures 48 in plate 31. The bolts 43 are slidable in theplate 41 and have the springs 39 coiled around them tcibias the plate 31toward the arbor 38 to engage the flange 36 of the last bobbin andretain all the bobbins in place. The tail-stock casing 43 is providedwith an extension which connects with an apertured bearing member 52having an operating handle 53 bolted thereto, for' is the rotation ofthe bobbins 32 which effects the feeding of the wire from a wire supplyspool or reel 55 disposed at the rear of the machine. (See Figure 4.) Itwill also be noted in Figure 7 that the bobbins 32 are provided with anaperture 55 in the hub 48 thereof for the reception of the end of thewire 33 prior to starting the winding of the first bobbin on each arbor.The bobbins 32 are also provided with a number of holes 51 in theflanges 36 thereof so that when the wire 33 is cut, the cut end is Iplaced in one of the holes 51, so, the wire on the bobbin will notunwind.

Wire feeding mechanism I As bestshown in Figures 1, 2,4 and 13, thefeeding of the wire 33 from the spools or reels 55 to the bobbins 32 isaccomplished by the 1301- lowing means, it being'understood that tworeels 55 are provided, one for supplying wire to a single bobbin 32 oneach of the two arbors 38,

and that the mechanisms-for feeding the wire to each arbor areidentical.

The spool or reel 55, is fixedly supported-on the external supportingmember 5 in an upright position, as best shown in Figure 4. Awire-unreeling mechanism, generally indicated at 58, is

supported on a rearupright 59 of the frame I. The unreeling mechanism isshown in detail in inclusive, and comprise a;

Figures 14. to 17, spindle 6| J'ournalled in bearings 62 contained in ahousing 63. The lower end of the spindle 5| is attached to an unreelingarm 64 of inverted U-shape. The unreeling arm is provided with inturnedextensions 65 at the lower extremities thereof. The inturned extensions65 are each provided with an opening 66 through either one of which wirefrom the reel 55 is led. As wire is drawn by the rotation of the bobbins32, the unreeling arm 64 is rotated on the spindle 6| and wire isthereby withdrawn or unreeled from the reel 55. I

The spindle 6| is provided with a central bore 61 through which the Wire33 extends. The wire 33 is then led to a plurality of sheaves 68 mountedon a fixed sheave bracket 69, which bracket is in turn supported byupright 1| of the frame I. A shaft 10 is provided for the sheaves 6-8 sothey may slide horizontally thereon. A brake arm 12, pivoted at 13, isspaced from the sheave 68 and is provided with sheaves 14 at its upperextremity. A shaft 18a is provided for the sheaves 14 so they maylikewise slide horizontally thereon. As best shown in Figure 1, thereare three fixed sheaves 68 and also four sheaves 14 on the arm 12. Thewire 33 from the bore 61 of the spindle 6| passes back and forth overthe sheaves 68 and 14 and is led from the outermost sheave 14 to singlesheave 15 mounted on a fixed bracket 16 on the top of the frame I. Ashaft 181) is likewise provided for sheave 15 so it may slidehorizontally. The wire passes over the fixed sheave 15 to a wire guidemember 11 having an aperture 18 therein through which the Wire is led,then past wire guide arms 19 to the bobbin 32. The wire guide 11 and thewire guide arms 19 are oscillated through a fixed horizontal distance bydistributing member 54, in a manner hereinafter more fully described, inorder to distribute each layer of wire on each bobbin. Since the sheaves68, 14 and 15 may all slide horizontally on the shafts 18, 18a and 18b,respectively, the sheaves may assume a position substantially in frontof the bobbin being wound and the oscillations aforementioned are alsofollowed.

Bra-Ice mechanism As the wire on the bobbin being wound begins to fillup the bobbin, it is apparent that the wire is withdrawn at a fasterrate from the reel 55 because the circumference of each layer of wireadded to the bobbin increases. The wire must be kept taut and if thechanges in the rate of feed in the wire from the reel wereuncompensated, the wire would have a tendency to snarl as it left thereel. This is particularly true when the wire jumps from a full bobbinto an empty one. The compensating mechanism is best shown in Figures 1,2, 4, and 13 to 17 inclusive, and

comprises the following.

The pivoted brake arm 12 is provided with a spring rod block 3|,pivotedto the arm 12 at 82 and has a horizontal spring rod 83 secured thereto.The spring rod 83 extends outwardly in two directions of the arm 12 andone end is provided with a collar 84 which is preferably adjustable. Theother end of the spring rod 83 is secured to the frame upright 1| by apivoted connection 85 and a second adjustable collar 86 is disposedbetween the pivoted connection 85 and the brake arm 12. A coil spring81, which may be under compression, is disposed between the block 8| andcollar 84 and a second and stronger coil spring 88,'always undercompression, is disposed between block 82 and the Second collar-86. The.adjustability f the =collars af fords. variation of the compression ofthe springs 81 and;88. so that, theforccs actingonthe brake arm, '|2.may be properly balanced.

A-snubber 89, preferably of the hydraulic type...

comprises. a piston element :9I and. a cylinder 92,, with its. valve(not shown) in the piston .rod end. of the cylinder 92. The cylinder 92vis; pivoted -at. 93 to an upright-94 and ,thepiston;- element 9| ispivotedat 95'to anarm 12a secured to the brake arm I2. The purpose ofthe snub:

ber 89 andspring 81 is to slow .downor smooth out themovement of thebrake arm I2;

The brake arm I2 is providedwith avertical slot .96 adjacent the upperend thereof. A horizontal spring biased brake: rod. 9! extendsthroughthe slot 96 and is provided "with. a stop collar -98 at one'endthereof. Apcoil spring, I isxdisposed between thestop collar -98jand thesidesof, slot 93.. The brake rod 91yis biased away from the unreelingmechanism by the spring -.I00 which biases a brake band 99 to which. thebrake rod 97 is ,attached, toward a braking,- position withrespect toadisc IOI which rotates with spindle6I, being keyed-thereto. brakematerial I02 is secured to the brake band 99 to engage the-rotating discIOI at. the proper time-and stop or considerably retard the rota-, tionof the disc. A spring I00'a is disposed.be-- tween an arm 99a pivoted at99b of brake ,arm 99 .and athreaded block I05. The spring I00a tends tokeepthe brake shoe 99 in a disengaged position from the disc IOI, and issufiiciently strong to normally overcome the bias of spring I00.

A'threaded block I05 is secured to an extension I06 of the spindlehousing 63 for the reception of two screwheaded bolts I01 and I08. Thebolts I01 and I08 are extended through a .rectangular brake plate I09which is supported in upperears III by pinsI I0. The .bolts I01 andI08arethreaded intoblock I05. Coil springsv II2 encompass the bolts I01and I08 and are. disposed betweenthe block I05 and the plate I09. Abrake shoe II3 with brake material I03 attached thereto is pivotallysecured to the brake plate I09 by pins H0 and engages the disc IOI atall times in order to provide resistance to the rotation of theunreeling arms 64 to thereby' retain the wire 33 taut as it is unreeled.The bolts I01 and I08 provide an adjustment for the amount of pressureexerted by the brake shoe II3. This second brake comprising brake plateI09,-shoe H3 and frictional brake material I03 maybe dispensed with ifnot found-necessary. It is not essential to the operation of the machineexcept under unusual conditions.-

The brake-shoe H3 and the brake plate I09 are provided with bores I I4and I I5, respectively, through which the wire 33 extends as it is ledto the first of the sheaves08.

The brake arm-I2 is biased slightly toward the left in Fig. 4 by theaction of the stronger spring 88, and when wire 33 is being withdrawn ata low speed, the parts are inthe position shown in Fig. 4. As a bobbin32- fills up, the rate of feed of thewireincreases and the increasedtension thereon. draws the brake arm I2 toward'th'e right in Fig. 4,thereby progressively loading spring 88. Obviously the action of thesnubber -92 and spring 81 smoothes out any rapid movement or shock ofthe brake arm '12. At this time, the brake arm 99 is at all timesretained out of engagement with disc MI. The only'time the brake-is puton, in normaloperation; is when Frictional.

the wire fiipped fromtone bobbin to another or;.if.the wire accidentallybreaks, asmore fully.-

describedhereinaften:

Wire winding anddistributing mechanism Referring now to the mechanismforwinding wire ;on the bobbin 32 and for distributing the-- wire'on eachbobbin, as best'shown-in Figs. 35,

35,- 38 and 39; arwasher I I9 is-disposed between the -assembly,II6 andthe pivot block II'I. One

such assembly and pivot block is provided for each-arbor 30.

As best shown'in Figs. 9 and 35, a pair of oscillating shuttle ordistributor rods -I2I are journalled in bearingsl22 and,I23 mounted onthe bed plate 2 and these rods'are rigidlyconnectedtogether attheirinner extremities by a sleeve- I 24, as ,best shown in detailin-Figs. 11 and .35. The shuttle rods I 2I areprovided with a plu-'rality; of notches .I25,"as shown in Figs. 9and 38,

one for each bobbin station, for reasons more.

As shown inFigs. 36 'and.,38, the pivot blockon each rod I2I is;

fully; described hereinafter.

held in releasable engagement with the rodIZI by,a balli'lzfiiwhich .ispressed downwardly by.

a spring I21, which spring is held .in position within a cavity.I28 inthe pivot block II'I .bya...

stud I29. As shown in Figs. 36 and 38, the pivot block II 'l'ispart ofan indexv slide block:I3Ix which has attached thereto an extension I32:

Inverted: U-shaped bridge members I are .secured to the slide block I 3Iand extend above the shuttle rod 'I2I. slides on a base I33 having alongitudinally extending slot I34 therein, through which theextensionI32 extends. Guide blocks I35 on base I33 guide the movement of theindexslide block, I3I and extension: I32. A correspondingslot. I36 isalso provided in the bed plate 2 forextension Assuming that the machineis in the condition shown in Figs. 35 and 38,,that is, one bobbin 32 is,wound and the second bobbinv .32 .is, being the bobbins 32.

The distributor mechanism 54 isshown in .detail in Figs. 23 to 34inclusive, and details of as-.

sociated parts are shown in Figs. 7, l1, l2 and 35.. Referring first toFigs. 23. to 34 inclusive for-- a detailed description of thedistributor mechanism 54, the mechanism is contained in a. sealed casingI 31 having oil I 38 therein, preferablyup to the dotted line in Fig. 23designated as oil level. A shaft I39 extends through a. fluid tight 1gland I4I in-thecasing I 31 and drives a worm' gear I42 therein. Asshown in Fig.; 4, the shaft I 39 is driven bya pulley I43, which in turnis driven by a belt I44 driven by variable speed pulley 9 on motor shaftI. It is apparent, therefore, that the shaft I39 and worm gear I 42aredriven at all times when the electric motor 6 is operated regardlessof the position of the clutches 8.

The Worm I42 is supported on a shaft I45 which-is driven by shaft I39and is journalled in bearing HIS-secured to the bottom of thedistributor casing I31 and drives a worm gear HT 0 therein. A supportI48 for bearing I5I is secured The indexslide block I3I to the fixedportion of bearings I 46, which bearing II provides a support for ashaft I53 keyed to the gear I41. A heart shaped cam I54 is secured tothe shaft I53 and is rotated by the gear I41. The shape of the cam I54is best shown in Figs. 24 and 29, and the dotted lines in Fig. 24illustrate the position of the distributor parts, including the cam I54,at one time during the cycle of operation. a

A rigid U-shaped bracket I55 is bolted at I56 to the top of thestationary shell of bearing I5I and supports a pair of vertically spacedslide rods I51. Slidably mounted on the slide rods I51 is a cam followermechanism generally indicated at I58 and including rollers I59 and I6I,which follow the contour of the cam I54 and move the cam follower I58back and forth on slide rods I51 in the following manner:

Referring particularly to Figs. 30 to 34 inelusive, the rollers I59 andI6I are provided with stub shafts I60 which are journalled in openingsI62 and I63 in the cam follower I58, the slot I62 being elliptical topermit lateral movement of the stub shaft I 60 on roller I59. Theopposite face of the follower block I58 is slotted at I64 and a rollerblock I65 is inserted therein. One end of the roller block I65 has ahole at I 66 therein, and the shaft I60 of roller I59 is engagedthereby. The opposite end of the roller block I65 is provided with aslotted stud I61 which engages one end of a tension spring I68, theother end of the tension spring being retained in position by a threadedstud I69. A plate I1I is secured to the cam follower I58 by bolts I12and covers the roller block I65 and spring I68. One arm of the U-shapedcam follower I58 is slightly longer than the other to provide a cavityfor receiving and retaining a stub shaft I13 of a pivoted block I10. Aroller I14a is disposed between the shaft I13 and block I14. The arms ofthe U-shaped cam follower also are provided with openings I10 forsliding on the slide rods I51 of the bracket I55.

As shown in Figs. 5, 11, 12 and 35, the pivoted block I14 is pivotallyconnected by a forked pivot I16 on the lever I15. The shuttle rodoperating lever I15 is pivoted intermediately thereof on a fixed pivotcomprising a pivot stud I11 threaded into a boss I18 bolted to the bedplate 2. The

opposite end of the shuttle rod operating lever I15 is pivotallyconnected to a pin I19 by a forked connection I8I which pin extendsthrough sleeve I24, whereby movement of the pin I19 imparts movement tothe shuttle rods I2I. A roller I82 surrounds the pin I19 and engages ablock I19a which is engaged by the forked connection I8I. The lower endof the pin I19 is inserted in and oscillates in an elongated slot I83 ina block I84 which is integral with a block I85 secured to the bed plate2.

It will be apparent, therefore, that as the cam I54 is rotated by thegears I42 and I41, the rollers I59 and I6I follow the contour of the camI54 and oscillate the cam follower I58. The pivot block I14 isoscillated by the movement of the cam follower I58 and oscillates theend of the shuttle rod operating lever I15 about the fixed pivot studI11 to thereby oscillate the pin I19 and the shuttle rods I 2I through alimited distance in the bearings I22 and'I23.

When the cam 655 is in the upright position,

i. e., with the cam depression notch either up or v down on aperpendicular line, the cam follower I58 and' the wire guide and flipperassembly II6 are centered. When one or the other rollers I 59 p I58 andassembly I I6 are moved to the left or right, obviously in oppositedirections.

As best shown in Figs. 12 and 35, the boss I18 for the pivot stud I11 isprovided with slots I80 so that the positionof the pivot stud I11 may bechanged with respect to the movable pivots, thereby varying the strokeof the shuttle rods I2I, so that diiferent size cores or bobbins 32 maybe wound.

It is also clear that the variable speed sheave 9 affords a variablespeed distributor 54 so that the various thicknesses of wire may bewound on the same bobbins.

Both of the latter features insure even layers of wire and the maximumfootage of wire on each bobbin, regardless of the size of the bobbinsorthe wire, within the limits of practicability.

Indexing mechanism Referring now to Figs. '7, 9, 10, 35, 36 and 38 for adetailed description of the indexing mechanism, which moves the wireguide and flipper assembly II6 from one station to another for windingsuccessive bobbins, again the two sides of the machine are identical, sothat only one side need be described. As best shown in Figs. 9 and 10,the machine is provided with weights I86 which are connected toextension I 32 of the index slide block by a chain I81 which passes overa sprocket I88. A chain I89 is likewise connected to the extension I32and is wound around a large sprocket I9I. Sprocket I9I is secured to asprocket shaft I92 provided with bearings I93 supported by the frame I.A second sprocket I94 is secured to the shaft I92 and a second chain I95is wrapped around the sprocket I94. Chain I95 has one end connected tothe sprocket I94, passes'over a sprocket 200, to an extension I96 of apiston rod I91 for a piston I98 of an air cylinder I 99. A third chainI950, has one end connected to and passes over a sprocket I94a alsosecured to the sprocket shaft I92. The opposite end of chain [95a isconnected to the extension 53 of the tail-stock assembly.

The air cylinder I99 is supplied with compressed air through a conduit20I under control of a valve 282 operated by a foot-pedal 203. When thepiston I98 is in its lowermost position, the weight I86 is drawn to itsuppermost position because the chain I95 is unwound from sprocket I94,chain I95a is also pulled taut to exert releasing force on tail-stockextension 53 and chain I89 is wound on sprocket I9I to pull the chainattached to indexing mechanism extension I32 and thus raise the weight I86. As the weight I86 descends under control of the indexing mechanism,the chain I95 is wound on sprocket I94 and chains I89 and I95a unwindsince the sprockets are connected together by the pulley shaft I92.

The bobbin winding operation starts with the indexing mechanism in theposition shown in Fig. 9. The foot pedal 203 has been operated to raisethe weight I86 and to draw the index slide block I3I, wire guide andflipper assembly H6 and extension I32 toward the center of the machine.The outer bridge I30 of the index slide block I3I engages assembly I I6to move it to the seating position. If the electric-motor '6 isoperating and the clutches 8 are engaged, the machine starts to wind thefirst bobbins .32 and when the bobbin is filled, the index slide blocksI3I are moved to new stations and the second.

bobbins are-wound, and so on until the ten bobbins are" all-wound,- itbeing obvious that'* each end of the machinemay be operatedindependently of 'the' other. 'The'following parts control themovementof the indexing mechanism.

Referring specifically-to Figs. 5; 9, 35, 36, 88 and 39, it is-againpointed out that" the wireguide and flipper assembly" I I6 ismountedonand-carried by the index slide block I3I and provides a guideforfeeding wire 33 tothe bobbins 32. Furthermore, the index slide blockI3I is --held in yielding engagement with the-notches 125 on theshuttlerods' I2 I by thespring pressed ball As best shown in Figs. 5 and'--36-a-plurality of index lever brackets 205' are secured to-a plate 201 on anextension 206 of'the slide block base I33 and aplurality of index levers-208 are pivoted on horizontal pivot shafts 209 supported by the indexlever brackets 205. Ten index levers 208 are provided one for eachbobbin on the respectivei arbors. .As shown. in Figs; 36;:and- 41, eachThewire edwith a pin- 2 I 3 extending horizontally .in one directiontherefrom. One portion ofthe index lever 208 at-this latter end isfiatas shown'at 2I4 and an adjacent portion'is-provided with a curvedsurface-at 2 I ,5, for the; purpose offretaining an adjacent index 1finger 208. in araised position wwhen-a bobbin is filled with-wire, in amanner hereinafterdescribed.

A- stop shoe: 2| 6 shown in- Figs. 36,. 38 ;and=41, and inwdetailin Fig.40, is carried by the-index slide block' I3,I,:b'eing securedthereto'bya dowel pinZIT. T'Ihe index slide 'block .I3I is slightly"recessed; as shown at 2 I 8 in: Figs; 36: and 40, for

'the'reception of thestop shoe 2I6.

.The uppersurface -:of the stop. shoe. 216 is face 22 I and? another.partiallyirbeveled surface 1222;: for :.a* purpose, hereinafterdescribed. The stop shoe'r2'l6 'in the positionshown'ain Fig. 41 .is.stoppedZLbyJtheJ side o'f iither'secondindex .arm 208,-so':that:.the;second'zbobbin 32 may be'wound byits :own rotation and? the.oscillation'pi: the

. shuttle rods 1 2 I. and. wireguide .and flipper .as- :sembly i I-I.6,before 'the indexing r-mechanism moves these parts to the: next station.

As soon as the bobbin-32 .is'ffilled, its WlIG'fOllower 2| l rotates itsindex lever .208'above the "beveled edge-"222 of 'stop shoeZ I6.Thisimmediat'ely permits the weight-l86 to .drop and pull the "chainIB'L-pulling extension I32 and index slide block I3I away from thecenter-of. the machine, overcoming the yieldable resistance'of thespring pressed ball I26 in' thenot'ch I25 of the shuttle rod I2I.*Theinner bridge member I30 engages the assembly II 6' to overcome i theresistance of 'ball I26 and move the assembly to the next station. The'shoe' 2'I6 and therefore, the index's'lide block- I3I are stopped atthe-next bobbin-station by the next index lever 208-which is in itslowered position.

The inner index lever 208 which :has been raised is retained; onthe;flat surface 22I-' of shoe 216 and the" surface 22I :ishigh'enoughto lift the wire followerZI I; outof' contactiwith the'wire on :the'wound1:bobbin,:; so that" the follower will *not scratch'the wire; IWhen 'theindexing mechanism moves to the next station, 'the pin -2I3-onthe last adjacent index lever to be raised by follower 2II' slides overthecurved surface-1150f the last index lever to be raised,- and the last"adjacent index lever to be raised'is held inits upper position; and soon sequentially, so that all the followers-2H except the outermostone-are 'disengagedfrom the wire on their-corresponding spools. Thisisbest shown in Fig; 41.

The -beveled surface 219 -on the stop-shoe 2I6 insurespthat the stopshoe will not stick on an index lever. whichxmightbe slightly outofpposition, when the stop shoe is travelingbackto its starting positionat the.center..of theimachine when weight I86 is raised.

Flipper mechanism In order to quickly flip-the -wire- 33.--from' one'zbobbin'32-to the next bobbin andto dispense with cutting the wire whenthe indexing mechanism :moves the index slide block I3I and wire, guide-and-flipper assembly IIG to the next bobbinstation, the followingmechanism, as best shown in v Figs. 9, 35, 36 and 39,is utilized.

. A.fiipper' pin bracket 223- in the shape of an inverted U is bolted tothe index mechanism base I33 andhas nine. flipper pins' 224-.insertedzin' the upper .leg of the U, one for each of thebobbins 32except the last bobbin. A"fiipperiipinistriker and block 225 ispivotally mounted at-the. edge of the assembly I I6 adjacent the flipperpinsand in position to be engaged therebywhen the striker 225 is movedpast any one of 'the flipper pins 224, upon movement of the indexingslide 'blo'ck I3I and the assembly H6 to-a next bobbin station.

As'stated before, the wire guide and flipperpin assembly ll6..ispivotally mounted on the: pivot .stud I I8. An arm 22'l..'is.provided onthe side of the. distributor block HT and a tension'spring .1228.isattached between the arm 22! and the guide and flipper assembly II6.When the striker 225 moves past a flipper .pin. 224, .thespring '228 is.pla-ced-under considerable tension, and as'soon as: the striker" 225 isreleased, the assembly. II6

snaps back to .normal position. A stop pin Illa .mounted onblock II'Istops the motion ofas- .=sembly I16v in a central position. .Themovement of. the striker 225 pasta pin 224 quickly flips the wire overto the next bobbin by fast movement of: the wire guide-arms 19 for thewire. Itis obvious that the relatively light assembly- I lli has muchless inertia thanthe heavy index slide block and associated parts,including chains, pulleys and-weights and the action in flipping thewire over is very fast. A coil spring 226' rotates the striker225 aboutits pivot-and back'to its normalposition when the striker 225 strikesthe pins 220 when the assembly I I6 is moved back to its startingposition. Shoulders 229 and 230 on I the striker 225 and body ofassembly. II6- prevent rotation of the striker 225 relative 'to theassembly II6 when the assembly H6 .is movedtsequentially to successivewinding stations.

' The guide arm end of thewire guide and flipper assembly H6 is pivotedat 23I and locked in desired position by pins 232. Shims 233 of variousthicknesses, one of which is shown in" Figs. 37 and 38, are insertablein a divided guide arm holder 234 so that the distance between theguidearms may be changed for different thicknesses of iavire. Slottedopenings 235 and 236 and lock bolts "are provided forthe'insertion'.ofishimsi233 of Various thicknesses. Y

